Certain nouns in Latin have an i-stem, such as puppis, -is (ship). However, following the consonant declension, these generally take an accusative stem –em (puppem), not –im.
This post covers exceptions to that rule, by listing all cases where –im is retained
1. Greek nouns borrowed from the Greek third declension (consonant declension) with an i-stem.
- Paris -> Parim
- Adōnis -> Adōnim
- Busīris -> Busīrim
2. The following Latin nouns:
- amussis, -is (rule)
- būris, -is (plough-beam)
- cucumis, -is (cucumber)
- rāvis, -is (??)
- sitis, -is (thirst)
- tussis, -is (cough)
- vīs, -ī (force, power)
[n.b. on rāvis, -is…. I can’t find this in any online dictionary. Any clues?]
3. Adverbs in –tim, such as partim (in parts)
The –im ending is also found occasionally in the following words–
- febris, -is (fever)
- puppis, -is (ship)
- restis, -is (cord)
- turris, -is (tower)
- secūris, -is (axe)
- sēmentis, -is (sowing)
“and rarely in many other words,” say A&G. Damn poets…
The Essential AG: 75a-b
Latin for Addicts 